Research Article
Entanglement and the Measurement Problem
Table 1
Comparison between a simple superposition (Figure 2) and an entangled superposition (Figure 4). In Figure 2, single-photon states vary with phase. In Figure 4, only the correlation between single-photon states varies with phase while single-photon states have no phase. Thus, each biphoton is coherent but its subsystems are incoherent. That is, entanglement decoheres each photon while transferring coherence to the biphoton.
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